Combined screw-driver and brad-awl



(No Model.) 7

. W. CRONK.

GOMBINED SURE W DRIVER AND BRAD AWL.

M 3 A c ,s E,

m g m B M M dmAVW/Wd [F m w An B 3 I d a A i!!! 1i. I a y w 0 2 L F 5 lm ,I\ B Y |.ld H 6 l 6 A a E v w 0 r N UNITE STATES PATENT anion.

XVILLIAM ORONK, OF HAVANA, NEWV YORK.

COMBINED SCREW-DRIVER AND BRAD-AWL.

SPECIFICATION forming part of Letters Patent No. 36,205, dated July 12,1887. Application filed January 3], 1887. Serial No. 225,961. (Nomodel.)

To all whom it may concern.-

' Be it known that I, WILLIAM CRONK, a citizen of the United States, anda resident of Havana, in the county of Schuyler and State of New York,have invented certain new and useful Improvements in a Combined Screw-Driver and Brad-A W], of which the following is a specification.

My invention relates to improvements in a combined screw-driver andbrad-awl; and it consists in the novel construction and combination ofits parts, as hereinafter fully described, and pointed out in theclaims.

The object of my invention is to provide means whereby a reversibleblade formed in a brad-awl at one end of the blade and a screwdriver atthe other end can be quickly and readily adjusted to adapt the same tooperate to pierce holes or to turn screws, and to provide an improvedtool thatshallbe meritorious in construction and effective for thepurpose designed. I attain these objects by the combination of elementsas illustrated in the accompanying drawings, in which- Figurel is anelevation of a completed screwdriver and brad-awl as combined in'myinvention with the driver end of the blade presented. Fig. 2 is alongitudinal central section of same. Fig. 3 is a longitudinal sectionon theline w m, Fig. 2, with the brad-awl end of the blade presented.Fig. 4 is a cross-section on the line y y, Fig. 1, and Fig. 5 on theline 2 2, Fig. 2.

Like letters of reference refer to like parts throughout the severalviews.

A represents the shank of my improved screw-driver and brad-awlcombined, having its one end, to which the handle B is made fast in themanner hereinafter described, expanded around about of increasingdiameter in a sheet or flange, a, converging conicallyto a point belowin the longitudinal axis of the shank. Above this point, and where saidflange in its convergence intersects the body of the shank, I havesquared the shank transversely, all but a thin web or partition, a whichdiametrically connects the flange a as it arises with afarther-projecting central stem, a, from the squared shank sufficient tosustain a handle, B, that may have its upper portion flattened orotherwise made, but provided with an end corresponding to thecentrally-divided cavity within the projecting flange 0., and an openingup its center to receive,by driving the handle down upon it, the web aand stem c of the shank. That portion of the shank opposite from thehandle end is provided with a convex-sided slot, 0, runninglongitudinally from the lower free end of the shank up to or near Wherethe flange a begins. The arms D 01 thus made by the slotting of theshank will have inner concaved faces, andin a transverse line hole 8through them, near their free ends,

. through which to receive a cross-binding pin or screw-bolt, It, havinga nut, T, by means of which the arms may be drawn together, a blade, E,lanceolated and beveled to form a brad-awlsuch as ordinarily used by joinersat one end andaserew-driver at the other end, having its centralportion conneetin g the driver and awl made with convex sidescorresponding to the slot 0 of the shank in cross-section, and a hole,8, through it, by which it is pivoted within the slot upon thecross-binding screw-bolt R. Thus it will be seen that the blade may berevolved about to present either end outward in alignment with thehandle for work,and held firmly in this position1,in which the oppositeend will be within the slot of the shank, by the binding-screw acting inconjunc tion with the inner faces of the shank-arms D d.

I am aware screw-d rivers have been made heretofore characteristic ofhaving a borer in combination and a blade supported by yieldingbindingarms. Such invention I do not claim, broadly; but

What I do claim, and wish to secure by Letters Patent, is

1. A screw-driver and brad-awl consisting of the shank A, having asocket having a divisional partition, a and centrally-projecting stem,a, the handle 13, having a slot across its attaching end and an openingup its center to receive the partition and stem a of the shank, arms D(I, having concave inner faces, and a reversible blade elliptical incrosssection pivoted within the arms of the shank, substan tially asdescribed.

2. A combined screwdriver and brad-awl comprising a shank having asocket divided by partition a and centrally-projecting stem a, arms D d,divided byslot 0, having convex sides, handle 13, and a blade adapted toboretained in alignment with the handle by correscrew-driver at one endand a bradawl at the sponding in cross-section t0 the elliptical slotother end,andapivot-pinprovidedwith means between the inner faces of thearms, substanto clamp the blade in the slot within the contially asdescribed. caved inner faces of the shank-arms, substan- 5 3. Inacombinedscrew-driverandbrad-axvl, tially as described.

the shank A, having a socket having a'divisi0na1 partition or web, a,and central stem, WILLIAM ORONK' a and arms D d, divided by slot 0,having \Vitnessesz' convex sides, in combination with a reversible E.HORTON,

IO blade corresponding to the slot and having a F. HoYT.

